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圣念 马

Interests
swimming jogging
你是天上的月亮 我看着你我心里就踏实了
welcome
为朋友们提供方便 如果觉得好 在留言簿上留言哦
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if you are my friend,please leave some words.

hoo....

Someone on Windows Live
Someone on Windows Live - May 12, 2007
来看看 空间不错的 继续努力哦~
xia li - June 29, 2007
ha ha, you and your girlfriend start looking alike now...ha ha......that's a good thing I suppose....ya, I became one last time when I was here, so, I guess that we are sister and brother now, right?
小皎 谢 - July 4, 2007
oh~maybe I should speak English here
呵呵~
培培 李 - Sept. 9, 2007
李夏~我还没有你的msn! 加我!kedayapeipei@hotmail.com
茜 王 - Sept. 22, 2007
好棒啊,这个月饼哪里做的啊,自己在家做的啊? 还有,你也去Mtime啊,哈哈,这个网站不错哦。。。。。热烈的笑脸 
圣念 马 - Oct. 4, 2007
第57届艾美奖
剧情类剧集最佳编剧:《豪斯医生》(House: Three Stories);FOX
推荐大家
season4 已经新鲜出炉了
Yan Lu - Nov. 27, 2007
念念同学,这里教堂的工作人员问我收集中国的诗歌(未必古代),主要描述的new year, new beginning, new life,你如果想到什么,记得给我个邮件哦,谢谢啦
lp y - Jan. 13, 2008
偶,No
it's me
Steven Xing - Feb. 2, 2008
你的背景音乐让我突然想起了过去一年中的一些情绪。。。。。。
 
克健 063 - Feb. 22, 2008
谢谢
Mengqi Li - May 2, 2008
可以啊...双休日全天开放的呀...最近好象交大师生办卡跟我们是一个价的...在搞优惠活动...120块/12次
Mengqi Li - May 3, 2008
8客气..
涛 刘 - July 19, 2008
我是杨雄豪一朋友,没错的话,我记得我是从杨雄豪BLOG那链到这来的。
至于为什么我们变成好友,我不记得了。
小华 - Oct. 31, 2008
参观一下,内容挺丰富.不错的个人门户网站
May 26

HealthFrontier Launches ecgAnywhere Monitor


Branchburg, NJ based HealthFrontier has announced the launch of their ecgAnywhere Portable ECG monitor. The device can record a 12 lead ECG in real time, and can display readings on its built in LCD screen. The ecgAnywhere can also interface with HealthFrontier's Remote Health Monitoring System (RHMS), and ECG data uploaded to RHMS is stored in a secure online database which allows the patient's physician to remotely access the data.

Some features from the product page:

• ECG Memory

• Possibility to store up to 40 ECG in SCP-ECG format in its internal memory.

• Any ECG report can include patient’s data.

• PC Archiving

• Digital transmission of ECG reports to a local PC via USB cable.

• Wireless transmission

• Digital wireless transmission of ECG reports to a local PC via Bluetooth connection.

Press release: HealthFrontier Announces Launch of Microtel ecgAnywhere with their Remote Monitoring System...

Product pages: ecgAnywhere...Remote Health Monitoring System...

May 11

Chrono Tech:太阳时间与平均时间

机械钟表在中世纪就已经出现,但在17世纪后叶摆钟长足发展之前,日晷一直是日常生活中最精确的“钟”。那些同时接触到日晷和摆钟的人们会发现,两者指示的时间有时相同,有时相异,事实上一年中绝大部分时间两者都是不一样的。例如,当时钟指示现在是正午12时,但日晷却显示现在还未到12时或已经过了12时。为什么会产生如此差异呢?这就涉及到地球的运行轨迹和地轴的问题了。


地球以23.5度的倾斜角围绕太阳公转的轨迹是椭圆形而非圆形,所以1月初地球离太阳最近,此时要比7月离太阳最远时的公转速度快一些,因此以太阳运转为定时标准的太阳时间其实每天都在变化,为了方便计算,人们将每年分为265.25日,每天24小时,每小时60分钟,这就是平均时间。太阳时间与平均时间每年仅有四次机会完全一致,分别是4月15日,6月14日,9月1日和12月24日,其余时间里,两者之间的时间差别从负14分59秒至正16分15秒不等。于1976年创立格林尼治天文台的首席皇家天文学家John Flamsteed曾经做过一张对照表,记录了钟表显示的平均时间和日晷显示的太阳时间的差异,借助这张时间等式(equation of time),当时的人们就可以根据日晷显示的太阳时间来设定钟表的时间,古董钟的表壳里常常有一张画着这张表的卡片,或者把这张画印在表盘外。数学家Nicholas Mercator于17世纪制造了第一只显示时间等式的时计。能够将太阳运行至正午的太阳时间转化成时计上的平均时间。

Chrono Tech:上帝眷顾GMT手表

上帝眷顾GMT手表(双时区手表),它是最容易入手的表款之一。每个品牌都总会有一款,因此它的价格也是丰俭由人。

 

GMT表几乎和潜水表一样常见,不过有一类表例外,那就是古董劳力士GMT。他飞涨的身价让除了百达翡丽之外,所有的品牌望尘莫及,而且现在无数人在寻找它的踪迹。

 

为什么谈GMT一定要提到劳力士呢?很简单,劳力士创造了GMT手表。这并不是指1955年推出的劳力士GMT Master将24小时指针引入手表,早在1930's,cottier的world time 手表就已经具有多时区功能,但是GMT Master使双时区功能变的既实用又美观,正因为这样GMT手表才会成为各品牌的产品目录上的常青树。

 

对GMT手表(泛指所有GMT手表,不仅仅是劳力士生产的,更不是专指GMT master)的收藏者来说,他们有一个优势,那就是不用考虑1950年之前的手表,从钟表业的角度来说,GMT是一个新兴事物,因此,不用担心由于年代久远造成的损毁和消失。

 

GMT的定义

GMT(Greenwich Mean Time)——格林尼治标准时间,格林尼治标准时间是19世纪中叶大英帝国的基准时间,同时也是事实上的世界基准时间。当时主要为了1840年之后的铁路系统服务。它以格林尼治天文坛的经线为0度经线,将世界分为24个时区,除了在特定时期受到仇外心理、民族主义和某些反英心绪的影响之外,它的地位一直未曾动摇。

GMT手表就是可以显示两个或两个以上时区时间的手表——无论用什么方式,显示多个时区最直接的方法就是在一个表壳里装多枚机芯,比如glycine的airman 7就是典范。


                                

不过最经济也最常见的方法还是附加一个带有12小时或24小时时标刻度的旋转表圈。旋转表圈的使用方法很简单,将表圈上对应第二时区时间的数字对齐表盘的时针即可,如果表盘时间是伦敦时间,那么将表圈顺时针转动一小时,指示的就是欧洲大陆时间,逆时针转动八小时,则是美国西海岸时间。将表盘时间设定为家乡时间还是目的地时间取决于使用者的偏好,但由于12小时手表无法辨别白天晚上,通常还是设定所在地时间比较合理。

 

劳力士GMT手表,采用一根24小时指针,顾名思义,24小时旋转一圈,而主时针仍然是传统的12小时一圈。另外,还有一个带有24小时刻度的旋转表圈。这样,既可以使用12小时刻度读数,又可以使用24小时时刻读数,同时,将表圈上的某个重点对齐24小时指针,便可以显示第三个时区的时间。

初版GMT master还有一个创新之处不得不提,那就是红蓝两色的表圈。红色的6点到18点代表白天,蓝色的18点到6点代表黑夜,清晰明了,可惜这个版本的手表越来越难觅踪迹了。



有一个事件的发生使得GMT的定义复杂化了:1972年1月1日,UTC(协调世界时)成为新的世间标准时间。有不少人认为(还说的有板有眼的),UTC是巴黎图谋世界计时中心地位的一种手段。事实上,它是以原子时为基础,在时刻上尽量接近世界时的一种时间计量系统。它的出现时现代社会对于精确计时的需要。原子时与以往的计时系统不同,它非常精确并且不以某地的平均太阳时为基准,但是遇有地球自转速度不均匀,原子时与世界时之间的时差便日积月累,因此,UTC会在一段时期后加上正或负的闰秒来补偿。

UTC这几个字母是英文Coordinated Universal Time和法语Temp Universelle Coordinee的混合体。为了方便,通常记成Universal Time Coordinated。同样为了方便,在不需要精确到秒的情况下,通常也将GMT和UTC视作等同。尽管UTC更加科学更加精确,但是对于手表玩家和收藏者来说,GMT仍是更加受欢迎的。

 

说了那么多,相信大家对GMT应该有了一定概念,其实,还有一个好办法来解决烦人的时差问题:像斯沃琪集团老板Nicolas Hayek,多带几块表不久行了~ 


May 03

隐形密码纹身保护患者安全

无厘头科学:隐形密码纹身保护患者安全 | Jandan.net
这里的患者主要是指使用心脏起搏器的人。一些使用心脏起搏器的患者会使用无线传输的方式通过电脑来更新心脏起搏器的程序,不过这种方法毕竟不太安全,如果其中无线信号被黑客们利用,那可是性命攸关的大事。

于是人们想出了加密方式,传统的密码加密还不够,还需要把密码利用隐形纹身的方式给纹在手臂上,这种纹身只能在UV 灯(紫外线多呢个)下才能显示。它的优点是,除了病人,医生们在病人昏迷时也能及时找到密码重启or修理心脏起搏器。来源

# oioi:但似乎这种方法也不安全吧。忘了说了这个东东目前是Microsoft Research 在研究。

吸一下就能够治愈伤口

MIT外传:吸一下就能够治愈伤口 | Jandan.net
来自MIT 的学生Danielle Zurovcik 只有3美元就发明了一个快速治愈伤口的抽吸装置,他把它称之为负压力治愈器。

没有任何医疗化学的参与,仅仅就是一个手动的吸力装置就能够加快伤口愈合的速度。它的主要作用是让伤口绷带更加紧密,隔绝细菌和液体接触伤口的可能性,从而让伤口好得更快。这种东西主要将用于一些条件不太好,或者突发性灾区的救援工作。

Danielle 介绍用负压力来治愈伤口的技术一直存在,只好似原来的成本太高,制作成便携式的大多采用充电的方式,售价也不菲(租用的话100美元一天)。而他发明的这个则极其廉价,使用人力手动产生负压,一切以最方便最经济的方式设计。来源,以下是另一张图:
MIT外传:吸一下就能够治愈伤口 | Jandan.net

College Students Invent Next Generation Medical Alert Bracelet

Northeastern University seniors took a family tragedy and turned it into a monitoring device that could one day help seniors who fall down with no one around to help. Max Flaherty’s aunt had a medical alert bracelet, but that didn’t help her when she fatally tumbled down some stairs, was knocked unconscious, and no one saw. So when Flaherty and other members of his group in a senior design class at Northeastern University met over pizza last summer to decide on a project, they used the failings of the bracelet Max’s aunt as a starting point. Over the year, through weekly meetings with their adviser Professor Charles DiMarzio, they came up with a bracelet that will call for help after a fall and send biomedical data to emergency responders. "We took development kits for a microcontroller, accelerometer, and zigbee chip, our custom pulse oximeter and integrated them into a single point fall detection system with biometric sensing," team leader Chris Udall told Medgadget, who will be going to graduate school in Electrical Engineering at Georgia Tech next year.

A review on falls by Elaine Rawsky in Journal of Nursing Scholarship reported that the risk for falling increases significantly in those over 75 and up to 1/3 of people over 65 fall each year. A large amount of those falls are unwitnessed. The LiveSafe, as the team calls their device, works by constantly monitoring accelerations at the wrist and is activated by a fall. Jon Sarafinas, another team member, made it able to discern a fall from other behaviors, like a high five. When activated, an alarm is sounded, giving the user 10 seconds to push a button to turn it off. After those 10 seconds the LiveSafe sends an alert to a monitoring station using a standard wireless protocol, along with the pulse rate of the patient, valuable information to emergency responders to help determine the urgency of the call. Brian Rosenberg, a team member headed to law school in the fall, used feedback from EMTs to decide which biomedical information would be important to responders. These abilities were integrated with the help of final team member Darren Nunes into a small engineering model that Udall calculated could run for 50-60 hrs before needing a recharge. The team decided not to continuously monitor the pulse, thus allowing the battery to last longer and they thought that most cardiac events that would be important would lead to a fall, and so decided that they would prefer the device to raise a false alarm than to not report a fall, hence the 10 second delay followed by automatic notification.

7773b3b3.jpg

LiveSafe cost about $800 to put together and the team thinks that it could be produced for around $100 in larger scale production. A judge for the class competition, who is in the medical alert industry, was very impressed. The Northeastern team does not have any current plans to commercialize the technology, but are willing to entertain any offers that come their way. Dr. DiMarzio thinks that they did a great job with consolidating their 5 year engineering educations into a functioning technology demonstration, and if one day the LiveSafe is turned into a commercial product that saves a life, families like the Flaherty's would probably think so too.




April 02

贴心医生会“隐身”

 这几天,莘庄工业园区里市场会出现一部神秘的面包车,不时有人排着队上上下下,出来后面容“或喜或忧”。别担心,这不是什么“魔鬼小屋”,而是闵行中心医院派出的流动体检车,车上备有一整套医疗设备,通过电信的3G无线网络与医院内网相连接,身体状况好坏,由医生远程为你诊断。运用3G+WiFi无线技术等移动医疗手段,闵行区中心医院成功变身为“无线数字医院”。
    
“电子病历”护士随身带
    
    在闵行区中心医院的查房护士手中,人手一台PDA。以往医生、护士查房时,病人以往病史如何、有何新的变化、需要做何种检查、医生又下了什么新的医嘱……等等工作,琐碎且由不得一丝马虎。护士的笔头稍微慢一点,落在纸上的病人信息就可能出现差错。
    
    如今,护士手中的PDA,通过WiFi无线网络与医院的整套信息系统相连,只要轻轻一点,护士便可以清楚知晓病人的病史和详细资料,检查体温、帮助服药之后,相关信息同步录入医院系统中。查房医生则有一部“流动的移动医疗车”相陪,小推车上一部笔记本电脑,同样通过无线网络与医院数据库相连,如果有新的医嘱,或开新药,也可以在电脑上“无线开单”,病人家属只要到药房直接取药就行。“这样大大降低医护人员工作强度、出错率,提升工作效率。”闵行区中心医院相关人士表示。
    
在家能查心电图
    
    和市区大型三甲医院不同,各区中心医院和社区医院,主要服务对象是本地区居民。尤其是一些需要定期检查的老人,腿脚不方便,亟需医护人员上门服务,但庞大却不可移动的医疗检查设备,阻碍了这种上门医疗方式。但在闵行区中心医院,上门查心电图、血压、脉搏、血氧等“温馨服务”,已经成为现实。除了平板电脑,闵行区中心医院医护人员手中还有另一件“法宝”,那就是特制的3G天翼手机。这种手机内置测量心电图、血压、脉搏等数据的软件,在为病人检查时,在病人手腕上佩戴一个类似手表的测量仪,通过数据线将手机与测量仪相连,这样病人的心跳多少、血压高低等数据都会变成相应图表在手机屏幕上显现出来。同时,通过3G网络,这些图表还能同步传送回医院的心电室等相关科室,并由专业医师看图诊断。
    
    随着天翼3G网络覆盖全市,即使病人在家,医护人员也可以上门采集数据,由医生在医院“隔空号脉”。
    
病情变化短信通知
    
    如今,在闵行区中心医院,100多位主任医生必备的“行头”里都增加了一部天翼3G智能手机,除了为病人远程检查身体外,这部手机还是一台病人的“紧急呼救器”。
    
    无论在医院里,还是家里,医生可以随时通过为医院开辟的“专用3G网络”登录内部系统,查看病人的病况变化,并及时处理。同时,医生还可以设置预警呼叫,一旦病况超过预警线,便自动发短信到医生手机上。比如有些监控中的糖尿病病人,血糖如果到达警戒值,监测仪器便自动发信息给医生,医生可以通过手机远程更改医嘱,这样便为住院护士争取到抢救的时间。
    
    除此之外,通过3G手机,医生还可以实时了解医院运行状态、门急诊排队人数、专家排班信息、在线医生情况等。将来这些信息还将对公众开放,居民在去医院之前,只要登录医院网站,便可以查询到专家号是否已挂完,医院候诊人数多少,从而选择就诊时间。
    
救护车“提前救命”
    
    车厢前部,一个摄像头正对着担架位置,拍摄下车厢内病人的初步状况。同时,车内一套新型监护仪随时检测病人的心脏波形、血压、脉搏、血氧饱和度等重要生命体征。所有视频影像和数据通过天翼3G网络,同步传送至医院。
    
    通过无线网络,一部普通的救护车化身为“移动急诊室”,“病人在途中时,医院便可以根据救护车发来的图像、数据,进行初步的判断和准备,为病人特别是危重病人的抢救争取宝贵时间。”闵行区中心医院相关人士介绍。
    
    据了解,闵行区目前正酝酿在所有社区医院中推行“数字无线医院”的模式,一方面为每个居民建立“健康档案”,记录居民从出生到死亡的生命指标、疾病史、免疫接种史、保健管理信息;另一方面,通过无线方式集成一个健康平台,实时监护重点人群的生理参数,管理和调整治疗设备(如心脏起搏器、药物缓释装置)的工作状态,从而使整个社区成为一所无处不在的网络医院。  郝俊慧

Cheaper RFID Printed on Paper


4555535455345.jpgWe previously mentioned a study where it was shown that traditional RFID tags could be used safely as patient wristbands in a medical setting, but now a technology from Korea could help make it cheap enough to be widespread. Investigators from Sunchon National University in Suncheon, South Korea, and Rice University in Houston have printed flexible RFID tags directly onto paper in a process that they think could be made to cost less that 1 cent per tag.

This could be implemented in both patient wristbands and as a cheaper alternative to the many RFID tags already floating around many hospitals as a part of inventory control.

Read on at Wired Science: New RFID Tag Could Mean the End of Bar Codes...

March 21

Information Superhighway Through Your Arm

Scientists at Korea University in Seoul have demonstrated a prototype of a new biomonitoring system that transmits data through the body, replacing wires and minimizing the need for batteries.

The device is 300 micrometres thick and in a test, using a metal electrode coated with a flexible silicon-rich polymer, the researchers transmitted data at a rate of 10 megabits per second through a person's arm. The device was tested for skin safety after continuous wearing and the data was transmitted via low-frequency electromagnetic waves through the skin.

The technology may have implications for diagnostics, as it can be used to detect electric fluctuations as is currently done by ECG and EEG machines.

Read on at New ScientistHuman arm transmits broadband...

Abstract in Journal of Micromechanics and MicroengineeringWearable polyimide-PDMS electrodes for intrabody communication

Dyna-Vision Real-Time Remote Patient Monitoring System Gets US Green Light

RS TechMedic BV out of Broek op Langedijk, The Netherlands hasreceived FDA 510(k) clearance for its Dyna-Vision line of portable cardiac monitors. The devices, already approved in Europe, transmit ECG data wirelessly to a clinician via Bluetooth or through a mobile phone network.

Features of the top end Dyna-Vision device from the product page:

Remote Monitoring of Vital Signs: > 3, 5 and 12 lead ECG > Heart Rate > Plethysmogram & SpO2 > Respiration & Respiratory Rate

Benefits:
> Real-Time Remote Monitoring without limitations
> Internal GSM, Bluetooth Class I and USB connection
> No peripherals required for transmission
> Dyna-Vision© supports all mobile networks

Turn-key Telemedicine Solutions and Interfacing:
> Integration of Dyna-Vision© in existing platforms
> Server Solution, PC software and monitoring devices
> Remote Cardiac Diagnostic Services

Here's a demo video about Dyna-Vision:

Product page: Dyna-Vision...

Here's an interview Ivor Kovic, our former editor, took with the CEO of RS TechMedic in October 2008: Dyna-Vision Monitoring from RS TechMedic...